JP2009114440A - Resin composition for pavement, asphalt composition for pavement, and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a resin composition for pavement, which is melted in a short time, has excellent wettability and adhesion to aggregates and allows a load surface to have excellent durability and be free from problems such as deformation during summer season and cracks during winter season. <P>SOLUTION: The resin composition for pavement comprises, at the least, an ethylene-vinyl acetate copolymer having 25-45 wt.% vinyl acetate content, 40-100°C melting temperature and ≥400 g/10 minutes melt flow rate, petroleum process oil having 20-40% carbon content (CA) derived from an aromatic ring, and a teleblock polymer. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a resin composition for paving which is excellent in durability, particularly excellent in pavement strength at a low temperature, and excellent in deformation resistance in summer.

  In recent years, when pavement surfaces such as sidewalks, squares, and bridges are colored in various colors from an aesthetic point of view, or when colored from traffic safety measures such as pedestrian crossings and tunnels, or at road junctions and buses So-called colored pavement is formed in various cases, such as when coloring for the purpose of enhancing the function of the road such as a stop.

  In general, colored pavements include those using colored aggregates and those using pigments as binders.

  In the former, there are natural products such as silica sand and limestone, and artificial materials called light-colored aggregates. These are all white and are often expensive.

  On the other hand, in the latter, there is a method of mixing a pigment with a heated asphalt mixture, but since the heated asphalt itself has a dark brown color, the original color or brightness of the pigment is exhibited even if the pigment is added. It ’s difficult.

  For the purpose of solving such problems, it is possible to add a synthetic resin such as a petroleum resin or an epoxy resin to a conventional asphalt binder to reduce the color of the binder composition, thereby enabling coloring with a pigment or the like. Yes, but not enough.

  In addition, so-called synthetic binders, which are a mixture of a thermoplastic elastomer such as petroleum resin, styrene synthetic polymer, or ethylene copolymer, and petroleum heavy oil, obtain a clean color paving mixture by mixing with pigments. Things will be possible.

  For example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2000-230122) discloses natural asphalt and petroleum asphalt with a thermoplastic elastomer such as SBS, a petroleum oil as a compatibilizer and an oily surfactant as a phase separation inhibitor. Reported on mixed modified asphalt. However, durability, especially strength improvement at low temperature, is insufficient, and furthermore, due to the use of surfactants, foaming problems and migration over time on the pavement surface occur, and it is always excellent in durability. It cannot provide pavement. Further, the transparency of the binder itself is insufficient, and a clear color cannot be obtained when mixed with a pigment.

  Patent Document 2 (Japanese Patent Laid-Open No. 4-359063) discloses that aromatic process oil contains dicyclopentadiene petroleum resin, teleblock polymer such as SBS and SIS, and vinyl acetate in a content of 4 to 20%. % Colored pavement binder composition mixed with ethylene vinyl acetate copolymer. However, even with this binder, the deformation resistance of the asphalt mixture is improved, but the durability, particularly the strength at low temperatures, is insufficient.

  Patent Document 3 (Japanese Patent Laid-Open No. 5-302072) discloses aromatic heavy mineral oil, petroleum resin, thermoplastic elastomer such as SBS and SIS, and ethylene acetic acid having a melt flow rate of 15 to 400 g / 10 min. There have been reports on a binder composition comprising a vinyl copolymer and a waxy substance. In addition, it has been reported that an asphalt mixture having a high viscosity at 60 ° C., a high temperature viscosity, and excellent deformation resistance can be provided, and the compressive strength is improved, but conversely, the strength at low temperature is sufficient. I can't say that.

JP 2000-230122 A Japanese Patent Laid-Open No. 4-359063 JP-A-5-302072

  It is an object of the present invention to provide a resin composition for paving that does not cause phase separation during long-term storage, has excellent deformation resistance, and can improve the paving strength at low temperatures.

  The technical problem can be achieved by the present invention as follows.

  That is, the present invention relates to an ethylene vinyl acetate copolymer having a vinyl acetate content of 25 to 45% by weight, a melting temperature of 40 to 100 ° C., and a melt flow rate of 400 g / 10 min or more, and an aromatic A paving resin composition comprising at least a petroleum-based process oil having a ring-derived carbon content (CA) of 20 to 40% by weight and a teleblock polymer (Invention 1).

  In the present invention, the ethylene vinyl acetate copolymer content is 2 to 30% by weight, the petroleum process oil content is 20 to 80% by weight, and the teleblock polymer content is 2 to 20% by weight. It is the resin composition for pavement of this invention 1 (this invention 2).

  Moreover, this invention is the resin composition for pavements of this invention 1 whose teleblock polymer is styrene-butadiene-styrene (SBS) and / or styrene-isobutylene-styrene (SIS) (this invention 3).

  Further, the present invention is the resin composition for paving of the present invention 1, wherein an aromatic petroleum resin having a softening point of 80 to 110 ° C. and an acid value of 0.5 mg KOH / g or less is added in an amount of less than 20% by weight. (Invention 4).

  Moreover, this invention is the resin composition for pavements of this invention 1 which added 0-10 weight% of polyolefin-type wax whose acid value is 1.0-70 mgKOH / g (this invention 5).

  In addition, the present invention is the resin composition for paving according to the fourth invention, wherein the polyolefin wax is polyethylene oxide (the sixth invention).

  Moreover, this invention is the resin composition for pavements in any one of this invention 1-6 whose shape is a pellet form (this invention 7).

  The present invention also provides a paving asphalt composition comprising 3 to 10% by weight of the paving resin composition according to any one of the present inventions 1 to 7 and 97 to 90% by weight of aggregate. (Invention 8).

  Moreover, this invention is the asphalt composition for pavements of this invention 8 characterized by mixing the resin composition for pavements and an aggregate at 150-200 degreeC (this invention 9).

  Further, the present invention is a paving asphalt characterized in that the pelletized paving resin composition of the present invention 7 and aggregate are directly fed into a mixer without passing through a measuring machine and mixed at 150 to 200 ° C. A method for producing the composition (Invention 10).

  Moreover, this invention is a manufacturing method of the asphalt composition for pavements of this invention 10 which heats an aggregate to 160-220 degreeC previously (this invention 11).

  The resin composition for paving according to the present invention melts in a short time and is excellent in wettability and adhesiveness to aggregates, is suppressed in the summer road surface deformation and winter cracks, especially at low temperatures. It is possible to provide a road surface with excellent durability such as excellent pavement strength.

  Furthermore, the pellet-shaped resin composition does not adhere to each other or adhere to the mixer during storage or transportation, and has a chip-like shape so as to melt in a short time. In the mixture of resin compositions, it is possible to provide a pavement material having good workability without problems such as dust at the time of adding a pigment.

  The configuration of the present invention will be described in more detail as follows.

  The resin composition for paving according to the present invention comprises at least an ethylene vinyl acetate copolymer, a petroleum process oil, and a teleblock polymer.

  The ethylene vinyl acetate copolymer in the present invention has a vinyl acetate content of 25 wt% or more and 45 wt% or less. When the content of vinyl acetate is less than 25% by weight, the obtained resin composition has insufficient flexibility, which causes cracks on the road surface after paving. This is particularly noticeable in winter. On the other hand, when the content of vinyl acetate exceeds 45% by weight, the softening point as a binder of the resin composition for pavement is lowered, the deformation resistance is lowered, and it causes summer drought. Preferably, the vinyl acetate content is 27% to 45% by weight, more preferably 30% to 42% by weight.

  The melting temperature of the ethylene vinyl acetate copolymer in the present invention is 40 ° C. or higher and 100 ° C. or lower. When the melting temperature of the ethylene-vinyl acetate copolymer is lower than 40 ° C., the softening point as a binder of the resin composition for paving is lowered, the deformation resistance is lowered, and it causes summer drought. On the other hand, when the melting temperature exceeds 100 ° C., it takes a long time and time for melting and mixing with the aggregate, causing a problem in workability. The melting temperature of the ethylene vinyl acetate copolymer is preferably 50 ° C. or higher and 90 ° C. or lower.

  The melt flow rate (190 ° C., load 21.18 N, notation based on JIS K6924-1) of the ethylene vinyl acetate copolymer in the present invention is 400 g / 10 min or more. When the melt flow rate of the ethylene vinyl acetate copolymer is less than 400 g / 10 min, it takes a long temperature and time for melting and mixing with the aggregate, which causes a problem in workability. In addition, there is a problem in compatibility with teleblock polymer and petroleum-based process oil, which causes phase separation during long-term storage. On the other hand, when the melt flow rate of the ethylene vinyl acetate copolymer exceeds 3000 g / 10 min, it may cause cracks on the road surface after paving. The melt flow rate of the ethylene vinyl acetate copolymer is preferably 420 to 2000 g / 10 min.

  The ratio of the ethylene vinyl acetate copolymer in the present invention in the resin composition for paving (total binder composition) is preferably 2% by weight to 30% by weight. When the ratio of the ethylene vinyl acetate copolymer is less than 2% by weight, the desired strength cannot be obtained. On the other hand, when the ratio of the ethylene vinyl acetate copolymer exceeds 30% by weight, the deformation resistance decreases. The ratio of the ethylene-vinyl acetate copolymer is more preferably 5 to 30% by weight, and more preferably 10 to 28% by weight.

  The petroleum process oil preferably has a flash point of 260 ° C. or higher. As the petroleum process oil, lubricating oil, heavy mineral oil, or the like can be used.

  In the present invention, petroleum-based process oil having an aromatic ring-derived carbon content (aromatic ring-derived carbon content in all carbons: CA) of 20 wt% to 40 wt% is used. If the content of carbon derived from the aromatic ring is less than 20% by weight, the compatibility with the teleblock copolymer is insufficient. On the other hand, if the content of carbon derived from the aromatic ring exceeds 40% by weight, ethylene-acetic acid is used. The compatibility with the vinyl copolymer becomes insufficient. The content (CA) of carbon derived from the aromatic ring in the petroleum-based process oil is preferably 23 to 40% by weight, more preferably 25 to 38% by weight.

  The ratio of the petroleum-based process oil in the paving resin composition (total binder composition) is preferably 20% by weight to 80% by weight. When the ratio of the petroleum-based process oil is less than 20% by weight, the viscosity of the resin composition for paving becomes too high as a binder, causing a problem in workability. On the other hand, if it exceeds 80% by weight, there is a problem in strength. The ratio of petroleum-based process oil is more preferably 30 to 70% by weight.

  As the teleblock polymer in the present invention, block copolymers such as styrene-butadiene-styrene (SBS), styrene-isobutylene-styrene (SIS), and styrene-ethylene-butadiene-styrene (SEBS) are preferable. The ratio of styrene is preferably 15 to 30% by weight, and the average molecular weight is preferably 10,000 to 300,000.

  The ratio of the teleblock polymer in the resin composition for paving (total binder composition) is preferably 2.0% by weight to 20% by weight. If it is less than 2% by weight, the deformation resistance is lowered. On the other hand, if it exceeds 20% by weight, the viscosity of the resin composition for paving becomes too high as a binder, causing a problem in workability. Furthermore, the softening point becomes too high, and the strength at low temperatures decreases. The ratio of the teleblock polymer in the resin composition for paving (total binder composition) is more preferably 2.0 to 18% by weight, still more preferably 2.0 to 15% by weight.

  The aromatic petroleum resin in the present invention preferably has a softening point of 80 ° C to 110 ° C. When it is less than 80 ° C., the softening point is lowered and the deformation resistance is lowered. On the other hand, when the temperature exceeds 110 ° C., the temperature and time for melting and mixing with the aggregate are required to be long, causing a problem in workability. The softening point of the aromatic petroleum resin is more preferably 80 to 100 ° C.

  The aromatic petroleum resin in the present invention preferably has a melt viscosity at 160 ° C. in the range of 100 to 1000 cps, more preferably 100 to 800 cps. If it is less than 100 cps, there is a problem with the durability of the paved road surface. On the other hand, if it exceeds 1000 cps, the wettability and adhesiveness to the aggregate are poor, causing a problem in the durability of the paved road surface.

  The aromatic petroleum resin in the present invention is preferably an aromatic petroleum resin using a C9 fraction as a raw material, having a softening point of 80 ° C. to 110 ° C. and an acid value of 0.5 mgKOH / g or less. In addition, those modified with phenol or catechol can be used.

  The ratio of the aromatic petroleum resin in the resin composition for paving (total binder composition) in the present invention is preferably less than 20% by weight. In the case of 20% by weight or more, the strength at low temperature decreases.

  As the polyolefin wax, an oxidized polyethylene wax having an acid value of 1.0 to 70 mgKOH / g is preferable.

  The ratio of the polyolefin wax in the resin composition for paving (total binder composition) is preferably 0% by weight to 10% by weight. When it exceeds 10% by weight, the strength at low temperature is lowered.

  As the polyolefin-based wax in the present invention, oxidized polyethylene, polypropylene wax, polyethylene wax, modified polyolefin wax and the like can be used, and these can be used alone or in combination of two or more as required. In particular, polyethylene oxide is preferable because it is difficult to cause cracks on the road surface and has high durability.

  In the present invention, a pigment may be added as necessary. The pigment is not limited to either an inorganic pigment or an organic pigment. In particular, an inorganic pigment is preferable from the viewpoints of heat resistance and weather resistance.

  As the inorganic pigment, yellow hydrous iron oxide (goethite), red iron oxide (Bengara), green chromium oxide, white titanium oxide, and the like can be used. A pigment having improved heat resistance can also be used. Further, extender pigments such as calcium carbonate, talc, and clay can be used. Two or more of these may be used in combination.

  Further, by using magnetic particles such as ferrite, a function based on magnetism such as magnetic induction can be imparted.

  The content of the pigment is usually preferably 5 to 50 parts by weight with respect to 100 parts by weight of the resin composition. If the amount is less than 5 parts by weight, the effect of adding the pigment is not sufficient. On the other hand, if the amount exceeds 50 parts by weight, the wettability to the aggregate becomes insufficient, which may cause a problem in the adhesion to the aggregate.

  In addition, for the purpose of further preventing adhesion between pellet-shaped paving resin compositions, the above-mentioned inorganic pigments, inexpensive minerals such as calcium carbonate, clay, talc, silica sand, bentonite, or magnesium stearate, calcium stearate A lubricant such as barium stearate can also be added. These powders for preventing adhesion can be used alone or in combination of two or more. More effectively, it is to adhere to the surface of the obtained pellet-shaped resin composition for paving, for example, after sprinkling on the strand coming from the extruder, into a small lump of the required size, Alternatively, a method of sprinkling after making a small lump is effective.

  The addition amount of these adhesion preventing powders is usually 0.1 to 5 parts by weight with respect to 100 parts by weight of the resin composition for paving.

  In the case of a pigment, there is no particular problem, but when a lubricant is used, it is preferable to reduce the amount used as much as possible. Therefore, 5 parts by weight or less is preferable. On the other hand, if it is less than 0.1 parts by weight, a sufficient addition effect cannot be obtained.

  Next, the manufacturing method of the resin composition for paving which concerns on this invention is described.

  The resin composition for paving in the present invention comprises an ethylene vinyl acetate copolymer, a teleblock copolymer and a petroleum process oil, and further, if necessary, an aromatic petroleum resin and other additives mixed in a desired ratio. A binder having a uniform composition can be obtained, and conventionally known methods may be used.

  Or what mixed each raw material similarly is knead | mixed by heating at 100-200 degreeC with an extrusion molding machine. Industrially, it can be kneaded with a uniaxial or biaxial extruder, cooled, and then pulverized to a desired size by a pelletizer to prepare a pellet.

  The size of the pellet is about 2 mm to 30 mm. When the thickness is less than 2 mm, the resin compositions tend to adhere to each other. On the other hand, when the thickness exceeds 30 mm, a problem arises that it takes a long time to dissolve the mixture when mixed with aggregate.

  The asphalt composition for paving according to the present invention comprises 3 to 10% by weight of the resin composition for paving and 97 to 90% by weight of aggregate. If the amount of the resin composition for pavement is less than 3% by weight, the strength of the asphalt composition for pavement is weak and easily causes cracks. On the other hand, if it exceeds 10% by weight, problems such as rutting of the pavement surface in summer tend to occur. Become.

A preferable method for preparing the asphalt composition for paving is to put the resin composition for paving in a packaging form directly into a mixer without passing through a measuring machine, and mix with the aggregate at 150 to 200 ° C, more preferably 150 to 180 ° C. Is the method. If the temperature is lower than 150 ° C., there may be a problem that workability when the obtained asphalt composition is used is reduced. On the other hand, if the temperature exceeds 200 ° C., problems such as partial deterioration of the resin and discoloration of the pigment may occur. May occur.
The mixing time is about 30 to 60 seconds. If it is less than 30 seconds, mixing may be insufficient. On the other hand, if it exceeds 60 seconds, the effect is not changed, and workability is deteriorated. In this case, the aggregate is preheated to 160 to 220 ° C. and charged into the mixer, whereby the resin composition for paving melts in a short time and the aggregate can be sufficiently wetted. If it is less than 160 ° C. or exceeds 220 ° C., it becomes difficult to adjust to the preferable mixing temperature.

  Further, when the resin composition for paving contains a pigment, it is not necessary to add only the pigment to the mixer, and therefore there is no adverse health and environmental impact caused by the dust of the pigment. It is preferable to use a resin composition for paving.

  In the present invention, the composition of a specific ethylene vinyl acetate copolymer, petroleum-based process oil, and teleblock copolymer melts in a short time and is excellent in wettability and adhesiveness to aggregate, It is possible to provide a road surface having excellent durability without problems such as deformation of the road surface in summer and cracks in winter.

  In addition, the pelletized resin composition for paving does not adhere to each other or adhere to the mixer during storage or transportation, and can be melted in a short time.

Furthermore, since the pellet-shaped small block paving resin composition of the present invention can be packaged in a predetermined amount of plastic bag or the like, since it is simultaneously weighed by putting it into the mixer directly from the packaging form, it is necessary to pass through a measuring machine. Therefore, it is not necessary to clean the weighing machine and the piping, and the workability is improved.
Furthermore, in the resin composition containing a pigment, since it is not necessary to add a pigment separately to the mixer, there is no health or environmental problem caused by dust, and a paving resin composition with good workability is obtained. Can be provided.

<Action>
First, an important point in the present invention is a composition comprising a specific ethylene vinyl acetate copolymer, a petroleum-based process oil, and a teleblock copolymer, which melts in a short time and has wettability and adhesion to aggregate. Furthermore, it is possible to provide a road surface excellent in durability and free from problems such as deformation of the road surface in summer and cracks in winter. In addition, even during long-term storage, phase separation does not occur and composition uniformity can be maintained.

  Further, if necessary, the addition of a specific petroleum resin or polyolefin-based wax can improve the physical properties such as strength and can easily produce pellets.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example and a comparative example, this invention is not restrict | limited at all by these.

The evaluation of the resin composition was based on the method described in JIS K2207 “Petroleum Asphalt”.
That is, each item of softening point, penetration, elongation, and meltability was measured.

The low-temperature property is whether or not the resin composition 5 g on the aluminum foil is heated and melted on a 130 ° C. hot plate and left in a low-temperature storage at 4 ° C. overnight and then cracked by hand. Was tested.
Does not break; ○
Break, ×

Moreover, regarding the mixture with an aggregate, the Marshall stability test and the water immersion Marshall stability test were evaluated.
The Marshall stability test was based on the method described in “Handbook of Pavement Test Methods”.

The test specimens were prepared under the following conditions.
A mixture composed of 48% No. 6 crushed stone, 23% rough sand, 23% fine sand and 6% of the resin composition obtained as above was mixed at 150 to 160 ° C. and compacted at 130 to 140 ° C. . The number of compactions was 50 times on both sides.

In addition to directly performing the Marshall stability test on the specimen obtained under the above preparation conditions, the specimen was immersed in a constant temperature water bath at 60 ° C. for 2 days, and then the Marshall stability test was performed.
Furthermore, the residual stability was calculated by the following formula.
Residual stability (%) = [stability after water immersion at 60 ° C. for 48 hours / stability] × 100

  Next, a mixture comprising 80.3% of No. 6 crushed stone, 11.7% of coarse aggregate, 3.2% of stone powder and 4.8% of the resin composition obtained above was mixed at 150 to 160 ° C., and 130 Compaction was performed at ˜140 ° C. The number of compactions was 50 times on each side.

  The specimen obtained as described above was allowed to stand at −20 ° C., and the drum was rotated 300 times without using a hard ball using a Los Angeles tester (a machine specified in the coarse aggregate abrasion test method), and the loss after the test. The amount was measured. (Cantablo test)

Example 1
Ultracene 726 (trade name; manufactured by Tosoh Corporation; vinyl acetate content 31% by weight, melt flow rate 700 g / 10 min) 210 g as an ethylene-vinyl acetate copolymer, Asaprene T-411 (trade name; Asahi Kasei Kogyo Co., Ltd .: SBS, styrene ratio: 30%, melt flow rate: <1 g / 10 min) 100 g and petroleum process oil Refresh Super E (trade name; Showa Shell Sekiyu K.K.) 690 g with a stirrer Were mixed using a reaction vessel of No. 1 to obtain a resin composition (A).
The obtained resin composition (A) had a softening point of 58.5 ° C., a penetration of 48, and an elongation of 68 cm.

Examples 2 and 4 and Comparative Examples 1 to 4
Type and amount of ethylene-vinyl acetate copolymer, type and amount of teleblock polymer, type and amount of petroleum process oil, type and amount of aromatic petroleum resin, and type and amount of polyolefin wax A resin composition was prepared in the same manner as in Example 1 except that various changes were made.

Example 3
After mixing various resins in the same manner as in Example 1, the resin was melted at 180 ° C., cooled to about 5 ° C., and cut into chips of 5 mm × 20 mm.

Case 5
After mixing various resins in the same manner as in Example 3, the resin was melted at 180 ° C., cooled to about 5 ° C., and cut into chips of 5 mm × 10 mm.

  Various properties of various raw materials are shown in Table 1, production conditions at this time are shown in Table 2, and various properties of the obtained resin composition are shown in Table 3.

  As shown in Table 3, it became clear that the resin composition for paving according to the present invention is excellent in meltability and folding resistance at low temperatures.

<Water immersion marshall stability test>
Aggregate 48% crushed stone, 23% rough sand, 23% fine sand, and 6% of each resin composition obtained above were mixed at 150-160 ° C and compacted at 130-140 ° C. It was. The number of compactions was 50 times on both sides.
The properties of the resulting mixture are shown in Table 4.

<Low temperature cantabro test>
A mixture of No. 6 crushed stone 80.3%, coarse aggregate 11.7%, stone powder 3.2% and each resin composition 4.8% obtained above was mixed at 150 to 160 ° C., and 130 to 140 Compaction was performed at ° C. The number of compactions was 50 times on each side.

The specimen obtained as described above was allowed to stand at −20 ° C., and the drum was rotated 300 times without using a hard ball using a Los Angeles tester (a machine specified in the coarse aggregate abrasion test method), and the loss after the test. The amount was measured (cantabulo test).
The properties of the resulting mixture are shown in Table 5.

  From the results in Table 5, it is clear that the resin composition for paving according to the present invention has a loss amount as small as 30% or less in the low-temperature cantabulo test, and has excellent characteristics as compared with the comparative example.

  The resin composition for paving according to the present invention melts in a short time and is excellent in wettability and adhesiveness to the aggregate, and further excellent in durability without problems such as road surface deformation in summer and cracks in winter. Can give a rough road surface.

  Furthermore, the resin composition has a chip-like shape so that it does not adhere to each other or adhere to the mixer during storage or transportation, and melts in a short time. Also, the pigment and the resin composition In this mixture, it is possible to provide a pavement-shaped paving material having good workability without problems such as dust when the pigment is added.

Claims (11)

Ethylene vinyl acetate copolymer having a vinyl acetate content of 25 to 45% by weight, a melting temperature of 40 to 100 ° C. and a melt flow rate of 400 g / 10 min or more, and an aromatic ring-derived carbon content A paving resin composition comprising at least a petroleum-based process oil having a quantity (CA) of 20 to 40% and a teleblock polymer. The pavement according to claim 1, wherein the content of ethylene vinyl acetate copolymer is 2 to 30% by weight, the content of petroleum-based process oil is 20 to 80% by weight, and the content of teleblock polymer is 2 to 20% by weight. Resin composition. The resin composition for pavements according to claim 1, wherein the teleblock polymer is styrene-butadiene-styrene (SBS) and / or styrene-isobutylene-styrene (SIS). The resin composition for paving according to claim 1, wherein an aromatic petroleum resin having a softening point of 80 to 110 ° C and an acid value of 0.5 mgKOH / g or less is added in an amount of less than 20% by weight. The resin composition for pavements according to claim 1, wherein 0 to 10% by weight of a polyolefin wax having an acid value of 1.0 to 70 mgKOH / g is added. 6. The resin composition for paving according to claim 5, wherein the polyolefin wax is polyethylene oxide. The resin composition for paving according to any one of claims 1 to 6, wherein the shape is a pellet. An asphalt composition for paving comprising 3 to 10% by weight of the resin composition for paving according to any one of claims 1 to 7 and 97 to 90% by weight of aggregate. The paving asphalt composition according to claim 8, wherein the paving resin composition and the aggregate are mixed at 150 to 200 ° C. A method for producing a paving asphalt composition, wherein the pellet-shaped paving resin composition and aggregate according to claim 7 are directly fed into a mixer without passing through a measuring machine and mixed at 150 to 200 ° C. . The method for producing an asphalt composition for pavement according to claim 10, wherein the aggregate is heated to 160 to 220 ° C in advance.